Sucker-rod elevator.



W. ONEIL, E. J. SCHNEIDER (Sc T. N. KELLETT.

SUCKER ROD ELEVATOR.

APPLICATION FILED APR.21,1910.

Patented Apr. 23, 1912..

, 4 wzlzfneasea ifwmw UNITED STATES PATENT QFTC.

WILLIAM ONEIL, OF NEAR LOS ANGELES, EDWARD J. SCHNEIDER, OF HOLLYWOOD,

AND THOMAS N. KELLETT, OF LOS ANGELES, CALIFORNIA, ASSIGNORS T0 AMAL- GAMATED OIL COMPANY, OF LOS ANGELES, CALIFORNIA, A CORPORATION OF CALI- FORNIA.

STICKER-ROD ELEVATOR.

Specification 01! Letters Patent.

Patented Apr. 23, 1912.

To all whom it may concern.

Be it known that we, VILLIAM ONE-IL, residing at the Salt Lake Oil Vells, near the city of Los Angeles, in the county of Los Angeles and State of California, EDWARD J. SCHNEIDER, residing at Hollywood, in said county and State, and THOMAS H. KELLETT, residing at said city of Los Angeles, in said county and State, all citizens of the United States, have invented a new and useful Sucker-Rod Elevator, of which the following is a specification.

The object of this invention is to provide means whereby sucker rods of deep-well pumps may be handled with safety, convenience and ease.

In pump well practice the derricks at the wells are provided with rod racks adapted to suspend sucker rods while they are drawn out of the well. Said racks are provided with slots in which the shoulders below the square of the rod engage leaving the square and the uppermost part of the rod free.

An object of this invention is to provide an elevator by which the rod may be drawn out of the well and placed in the rack and vice versa, may be drawn out of the rack and placed in the well.

The accompanying drawings illustrate the invention.

Figure l is an elevation of an elevator as it appears in the operation of placin a sucker rod in or removing it from a suc er rod rack. Fig. 2 is a plan of the parts shown in Fig. 1. Fig. 3 is a broken side elevation of the elevator shown in Fig. 1 open to receive a sucker rod. Fig. 4 is a section of the elevator on line 00*, Figs. 1 and 2. The elevator is shown closed in solid lines and open in dotted lines. Fig. 5 is a sectional plan 011 line :0 Fig. 1.

The elevator stem comprises a body 1 and neck 2 above the body having a screwthreaded tip 3 to hold a nut 4 that retains a ball race 5 on said neck 2. The lower end of the stem comprises two legs 6, 7, in movable relation to each other, the leg 7 being pivoted by a pin 8 at the upper end of the leg 6, the hinge being provided with a stop 9 to limit the extent to which the leg 7 will swing open. Said elevator stem is provided at its lower end with a seat 10.to support the shoulder 11 of the sucker rod 12 when the legs 7 and 6 are closed together. Said legs are provided with sockets 18 which conform to one-half of the suckerrod above the shoulder 11, so as to form a cavity at the lower end of the elevator to receive and a shoulder to support the shouldered end of a pump sucker rod. Said seat-s include rectangular grooves 14 and segmental grooves 15 and 16 which respectively fit the sucker rod square 17 box 18 and pin 19. A spring 20 is seated in seats 21 in said legs to nor mally hold the leg 7 extended, thus to provide in the elevator stem a slot or opening, clearly shown between the legs 6, 7, in Fig. 3, through which the sucker rod may be inserted to engage the seat 10 of the leg 6 and the seat 10 of the leg 7 when the elevator is closed. A sleeve 22 is slidably mounted on the stem and legs and comprises a guide collar 23 to fit the stem and a band 24 of larger internal dimensions than the guide collar to fit the shoulder 25 formed on the lower ends of the legs.

In order to insure ready closing of the leg 7 toward the leg 6 the legs are cut away above their ends leaving the teeth 26 on the inner sides of the legs at the bottom thereof, thus accommodating any material that may stick to the elevator legs above the teeth 26 so that when the teeth 26 are clean, the elevator leg 7 may come into position to engage the sucker rod and thus allow the sleeve 22 to slide into place on the shoulder 25. The grooves 16 may be provided with screwthreads 27 to engage the usual screw threads of the sucker rod pin. The swivel bar 30 is provided with a perforation 31 that fits the neck 2 of the elevator stem and is also pro vided with trunnions 32 that are journaled in the eyes 33 of the swivel link 34 to which a line may be fastened. The upper face of the swivel bar 30 is provided with a ball race 35 to correspond with the ball race 5 and to accommodate antifriction balls 36 by which the elevator stem is antifrictionally supported on the swivel rod.

In practical operation a bailing line, not shown, will be clamped to the link 34 in the usual manner and the open elevator will be brought into position to receive the upper end of the sucker rod to be handled and the shoulder 10 will be brought underneath that shoulder of the sucker rod which is above the sucker rod square, and the sucker rod will then be secured in place by bringing the sleeve 22 down to the lower end of the closed elevator stein, as shown in Figs. 1 and 4, thus preventing the leg 7 from swinging out to release the sucker rod. When the sucker rod is thus clamped it can be swung where it can be handled by the line and can be swung into the sucker rod rack 37 and also to allow the lower shoulder which is below the square to rest on the rack. Then the collar may be raised and the leg 7 allowed to open away from the leg 6 whereupon the elevator may be withdrawn from the sucker rod and the operation just described repeated with an other rod.

The hole 38 for the pivot 8 may be oblong to allow endwise movement of the leg 7 and the legs 6 and 7 may be provided with interlocking parts as the tooth 39 and tooth seat 40, whereby when the legs are brought together the tooth 39 rests on the seat 40, thus to relieve the strain on the pin 8.

We claim 1. A sucker rod elevator comprising a stem, a swivel support for the stem, said stem comprising legs in movable relation to each other and provided with interlocking parts and with a seat for the sucker rod shoulder and means to hold the legs together.

2. A sucker rod elevator comprising a stem, a swivel support for the stem, said stem comprising legs in movable relation to each other and provided with interlocking parts and also provided with screw-threaded portions to engage the threads of a sucker rod pin, and with a seat for the sucker rod shoulder and means to hold the legs together.

In testimony whereof, we have hereunto set our hands at Los Angeles, California this 14th day of April, 1910.

WILLIAM ONEIL. EDWARD J. SCHNEIDER. THOMAS N. KELLETT.

In the presence oi:'

JAMES R. TOWNSEND, L. BELLE RICE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

